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ES488334A1 - Method for obtaining uniformly mixed gases in a ball mold - Google Patents

Method for obtaining uniformly mixed gases in a ball mold

Info

Publication number
ES488334A1
ES488334A1 ES488334A ES488334A ES488334A1 ES 488334 A1 ES488334 A1 ES 488334A1 ES 488334 A ES488334 A ES 488334A ES 488334 A ES488334 A ES 488334A ES 488334 A1 ES488334 A1 ES 488334A1
Authority
ES
Spain
Prior art keywords
mold
mixed gases
uniformly mixed
ball mold
obtaining uniformly
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES488334A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aerojet Rocketdyne Holdings Inc
Original Assignee
General Tire and Rubber Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by General Tire and Rubber Co filed Critical General Tire and Rubber Co
Publication of ES488334A1 publication Critical patent/ES488334A1/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D22/00—Producing hollow articles
    • B29D22/04—Spherical articles, e.g. balls
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B39/00—Hollow non-inflatable balls, i.e. having no valves
    • A63B39/02—Arrangements for maintaining the pressure
    • A63B39/025—Arrangements for maintaining the pressure using containers with pressurising means for balls not in use

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Toys (AREA)
  • Absorbent Articles And Supports Therefor (AREA)

Abstract

A method is provided for rapidly distributing mixed gases throughout a partially evacuated ball mold. The invention is particularly useful in the pressurizing of tennis ball centers with a mixture of air and a low permeability gas. By this invention, the distribution of the low permeability gas throughout the mold can be accomplished by first partially evacuating air from the mold then injecting the mixed gases into the mold.
ES488334A 1979-02-09 1980-02-07 Method for obtaining uniformly mixed gases in a ball mold Expired ES488334A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/010,767 US4248275A (en) 1979-02-09 1979-02-09 Method for obtaining uniformly mixed gases in a ball mold

Publications (1)

Publication Number Publication Date
ES488334A1 true ES488334A1 (en) 1980-09-16

Family

ID=21747311

Family Applications (1)

Application Number Title Priority Date Filing Date
ES488334A Expired ES488334A1 (en) 1979-02-09 1980-02-07 Method for obtaining uniformly mixed gases in a ball mold

Country Status (10)

Country Link
US (1) US4248275A (en)
JP (1) JPS55107445A (en)
AR (1) AR220240A1 (en)
BR (1) BR8000529A (en)
DE (1) DE2948357C2 (en)
ES (1) ES488334A1 (en)
FR (1) FR2448427A1 (en)
GB (1) GB2042407B (en)
IT (1) IT1194599B (en)
SE (1) SE446246B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4447373A (en) * 1982-02-16 1984-05-08 The Procter & Gamble Company Process for making filled articles from polymeric material
DE3681919D1 (en) * 1986-01-06 1991-11-14 Mallinckrodt Speciality Chemic CATALYTIC METHOD FOR PRODUCING FLUORAROMATIC COMPOUNDS BY means of BRANCHED ALKYLPYRIDINIUM SALTS.
US4894488A (en) * 1988-03-21 1990-01-16 Comm/Scope, Inc. High frequency signal cable with improved electrical dissipation factor and method of producing same
GB2239229A (en) * 1989-12-22 1991-06-26 Grace W R & Co Vacuum packaging apparatus
US8627859B2 (en) * 2007-06-19 2014-01-14 Rebounces, Llc Apparatus for recharging tennis balls and method
US7658211B1 (en) * 2007-06-19 2010-02-09 Dirst William F Tennis ball recharging apparatus method
US8029394B2 (en) * 2009-03-04 2011-10-04 Tachikara Usa, Inc. Game ball with noise suppression disk

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2028096A1 (en) * 1970-06-08 1971-12-16 Unilever N.V., Rotterdam (Niederlande) Process for the oxygen-free filling of liquids
ZA738777B (en) 1973-01-18 1974-10-30 Gen Tire & Rubber Co Tennis ball inflation
US4098504A (en) * 1975-10-31 1978-07-04 The General Tire & Rubber Company Tennis ball
AU503457B1 (en) * 1977-08-01 1979-09-06 General Tire & Rubber Company, The Low resonance inflated ball
US4166484A (en) * 1978-01-20 1979-09-04 The General Tire & Rubber Company Method and apparatus for mixing gases in a closed chamber

Also Published As

Publication number Publication date
US4248275A (en) 1981-02-03
JPS5645382B2 (en) 1981-10-26
DE2948357C2 (en) 1983-12-22
IT7927971A0 (en) 1979-12-07
DE2948357A1 (en) 1980-08-14
SE446246B (en) 1986-08-25
AR220240A1 (en) 1980-10-15
GB2042407B (en) 1982-11-24
IT1194599B (en) 1988-09-22
FR2448427B1 (en) 1983-12-16
JPS55107445A (en) 1980-08-18
SE8000254L (en) 1980-08-10
BR8000529A (en) 1980-10-14
GB2042407A (en) 1980-09-24
FR2448427A1 (en) 1980-09-05

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